Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

AWR Corporation [Member]

Summary Of The Allocation Of The Purchase Price Of Acquisitions

		Amount
		(In thousands)
Net tangible assets acquired	$	10,718
Amortizable intangible assets		31,685
Deferred tax liability		(8,387)
Goodwill		32,379
Total	$	66,395

Phase Matrix Inc [Member]

Summary Of The Allocation Of The Purchase Price Of Acquisitions

		Amount
		(In thousands)
Net tangible assets acquired	$	5,624
Amortizable intangible assets		8,331
Goodwill		26,725
Total	$	40,680

Privately-Held Companies [Member]

Summary Of The Allocation Of The Purchase Price Of Acquisitions

		Amount
		(In thousands)
Net tangible assets acquired	$	8,099
Amortizable intangible assets		24,137
Deferred tax liability		(7,899)
Goodwill		17,987
Total	$	42,324